Explore relationships

Butadiene

Names Preferred IUPAC nameButa-1,3-dieneOther names BiethyleneErythreneDivinylVinylethyleneBivinylButadieneIdentifiers CAS Number106-99-03D model (JSmol)Interactive imageBeilstein Reference605258 ChEBICHEBI:39478ChEMBLChEMBL537970ChemSpider7557ECHA InfoCard100.003.138EC Number203-450-8Gmelin Reference25198 KEGGC16450PubChemCID7845RTECS numberEI9275000UNIIJSD5FGP5VDUN number1010CompTox Dashboard(EPA)DTXSID3020203InChIInChI=1S/C4H6/c1-3-4-2/h3-4H,1-2H2Key: KAKZBPTYRLMSJV-UHFFFAOYSA-NInChI=1/C4H6/c1-3-4-2/h3-4H,1-2H2Key: KAKZBPTYRLMSJV-UHFFFAOYAZSMILESC=CC=CProperties Chemical formulaC4H6CH2=CH−CH=CH2Molar mass54.0916 g/mol Appearance Colourless gas or refrigerated liquid OdorMildly aromatic or gasoline-like Density0.6149g/cm at 25 °C, p>1 atm0.64g/cm at −6 °C, liquidMelting point−108.91 °C (−164.04 °F; 164.24 K) Boiling point−4.41 °C (24.06 °F; 268.74 K) Solubility in water1.3g/L at 5°C, 735mg/L at 20°C SolubilityVery soluble in acetoneSoluble in ether, ethanolVapor pressure2.4atm (20°C) Refractive index (nD)1.4292 Viscosity0.25cP at 0 °C Hazards Occupational safety and health (OHS/OSH): Main hazardsFlammable, irritative, carcinogenGHS labelling: PictogramsSignal wordDangerHazard statementsH220, H340, H350Precautionary statementsP202, P210, P280, P308+P313, P377, P381, P403NFPA 704 (fire diamond) 342Flash point−85 °C (−121 °F; 188 K) liquid flash point Autoignitiontemperature414 °C (777 °F; 687 K) Explosive limits2–12% Lethal dose or concentration (LD, LC): LD50 (median dose)548mg/kg (rat, oral) LC50 (median concentration)115,111ppm (mouse)122,000ppm (mouse, 2h)126,667ppm (rat, 4h)130,000ppm (rat, 4h)LCLo (lowest published)250,000ppm (rabbit, 30min) NIOSH (US health exposure limits): PEL (Permissible)TWA 1ppm ST 5ppm REL (Recommended)Potential occupational carcinogen IDLH (Immediate danger)2000ppm Safety data sheet (SDS) ECSC 0017Related compounds Related Alkenes and dienesIsopreneChloropreneRelated compoundsButaneSupplementary data page Butadiene (data page)Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Yverify ( ?)

Use + to expand a branch. Click a topic name to open its summary.